Key Terms

Review the following list of key terms:

• autonomous system— A network participating in a larger network that is maintained by an autonomous entity.

• exterior router— A router in an autonomous system that passes routing information to other autonomous systems.

• interior router— A router within an autonomous system that exchanges routing information with other computers in the autonomous system.

• IP forwarding— The process of passing an IP datagram from one network interface to another network interface of the same device.

• OSPF— A common link state interior routing protocol.

• RIP— A common distance vector interior routing protocol.

• routing protocol— Any of several protocols used by routers to assemble route information.

• SPT (Shortest Path Tree)— A tree-like map of the network assembled by an OSPF router.